Photographic-printing machine.



I. P. B'ARROWS. PHOTOGBAPHIC PRINTING MACHINE.

APPLICATION FILED OCT- 26, "H6. I 1,276,476. v Patented Aug. 20, 191&

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GU 0: we 1 I. P. BARROWS.

PHOTOGRAPHIC PRINTING MACHINE. APPLICATION EILED OCT. 26. 1916.

Patented Aug. 20, 1918.

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fsnacfifiarrazazs 1; P. BARROWS. PHO'TOGRAPHIC PRINTING MACHINE.

APPLICATION FILED OCT. 26. I9I6.

Patented Aug. 20, 1918.

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STATES PATENT OFFICE.

ISAAC r. rannows; or mom normwnsr VIRGINIA.

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Specification of Letters Patent.

Patented Au'g. 20, 191 8.

Application-filed October 26, 1916. Serial 1%. 127,930.

To all whom it may concern:

Be it known that I,.IsAAo P. BARROWS, a citizen of the United States,and resident of Mount Hope, in the county of Fayette and State of WestVirginia, have invented certain new and useful Improvements in Pho- Itographic-Printing Machines, of which the following is a specification.

The present'invention relates to the artof photography and particularrefer-.

ence to new and useful improvements in photographic printing machines.

The primary object of, my invention'is' to provide a printing machinehaving simuljustable supporting frame therefor;

taneously operable feeding means for the sensitized paper and films whenin a roll or strip, means bein provided for automatically' applying alig t' to the film and sensitized paper to print upon the latter.

Another object of'my invention is to provide a machine of the classdescribed having automatic means for simultaneously feeding sensitizedpaper,and a ,film, and means for bringing saidpaper and films intorelatively close proximity for printing,

cutting means being automatically operable by the feeding mechanism.

A further object of my invention is to provide a machine of the classdescribedwhich is simple in construction, eifective in operation, strongand durable and. cheap to manufacture.

Other objects and advantagesto be derived" from the use of my improvedphotoview of a Fig. 6, is afragmental detached perspec-.

tive view of the cutting elementand ad- Fig. 7 is an enlarged sectionalview of a ishi able gegr fgr drivingthe rollers;

and

Fig. 8 is an enlarged fragmental perspec- I tiveview of the circuitclosing element for supplying light to the film.

Beferrmg more particularly to the drawing wherein similar charactersof'reference "designate like and corresponding parts throughout thevarious'views, H designates in its entirety the light housing in whichis contained a suitable light source, preferably electrical (not shown).

The housing H is provided with side and end. walls 10 and 11, the samesupporting:

a top frame 12 in which is mounted a transparent plate A pair of sideflanges 15 and 16 are arranged alongthe top frame l2,"said flangessupporting bearing arms 17 on which is revolubly mountedthe roller .18,said roller serving to carry the sensitized paper designated 19. A pairof arms 20 extend from the rear end of the housing 8 to support a roller21 on which is arranged the roll film 22, the web 23 of said film beingdrawn across the plate 13. The web 24 of the sensitized paper is drawn\across the plate 13 above the film for the printin operation'to bedescribed in detail hereina er.

I provide means for feeding the film and sensitized paper, said meansincluding two sets of feeding rollers 26 and 27 arranged preferablyinpairs on shafts 28 and 29, said shafts being journaled in the sideportions 30 of a frame F. The free ends of the shafts '28 and 29 extendbeyond one of the sides 30 and carry pinions 31 and 32, the pinions 31being in relative meshing engagement as are the pinions 32.

I provide means for imparting intermittent movement to the pinions 31and 32, said means including a relatively large gear wheel 33 journaledat- 34 to the flange 15. The gear 33 is in meshing engagement with theuppermost of the pinions 32, said ear also being in meshin meshed withthe innermost pinion of theset 31. A ratchet wheel 36 is formedintegrally with the gear 33, a lever 37 bem ournaled on the bearing 34and provide with a pawl 38 for engagement w th said' ratchet wheel. Asemi-circular guiding frame 40 is mounted on the housing 8 as at 41, thefreeend of said frame being formed with a leg 42 set as at 43 to embracethe under mar f a1 edge of-one of the side portions 30 o the frame Fand'being perma engagement wit a f sliding pinion 35, sai vpinion beingin turn nently secured, thereto. The leg 42' forms a cross-head guidefor a purpose which will hereinafter appear. I

In order to brin the film and sensitized paper into relative y closeproximity with each other and said plate 13, I provide a presser 45arranged above said film and sensitized paper. A bearing block 46 iscarried by the platen in which is journaled the crank portion 47 of acrank shaft 48, said crank shaft being journaled in bearings 49 mountedon the flanges 15 and 16. The free end of the crank shaft 48 is bentdownwar'dly as at 50, a curved bolt 51 passing through said portion 50,one end of the bolt having a nut 52 mounted thereon and the other end ofthe bolt'being pivotally connected at 53 with the lower free end of thelever 37. It will thus be seen that when the lever 37 is oscillated inthe direction of the arrow in Fig. 1, the pawl 38 will engage theratchet wheel imparting rotary movement thereto which will in turn beimparted to the rollers 26 and 27 through the medium of the pinions 31,32 and 35. The free end of the paper and film is engaged between therollers 27 and 26, respectively, and it will thus be seen that whenmovement is imparted to said rollers the paper and film will of the arm56 so that when said arm e gages said circuit terminal a circuit (notshown) wlll be closed to energize a li ht source (not shown) Within thehousing lif I provide means for cutting the sensitized paper after thesame is printed, said cutting means including a bar 62 arranged on topof the sides 30 of the frame F, a pair of strips 63 mounted on saidsides serving as track-ways for said bar. The bar is provided with areinforcing strip 64 bent on its freeendsto form flanges 65 forengagement with the track-ways 63, a set screw 66 serving to lock saidbar 62 in adjusted position on said track-ways.

A knife-frame K is provided U-shaped 1n configuration and including achannel base portion 67 and parallel vertical arms 68, said armsextending through openings 69 in said bar 62 and strip 64, the upperfree ends of arms 68 being twisted as at 7 0 and bent upon themselves toform supports, an 1ionchned knife blade 71 being carried therey. wlthone of the marginal edges of the strip 64 to perform a cuttingoperation. The

frame K is maintained out of cutting usit1on normally by means of a pair0 fiat springs 72 anchored at 73 to the under sur face of the bar 62,said springs extending in The knife blade is adapted to co-act,

opposite directions and connecting to the c annel member section. 67 bymeans of links 74.

The mechanism for vertically reciprocat ing the knife blade includes arocker shaft 7 5' preferably polygonal in cross section and carrying acam 76, said cam being located within the channel member 67. Said cam isfreely slidable on the shaft 75 but turns with the shaft. One end of theshaft 75 is mounted in a bearing plate 76 carried by the free end of theframe F, the opposite end of the shaft being journaled at 77 in one ofthe end walls 11 of the housing H. The shaft 75 carries a crank arm'7 9preferably rightangular in configuration, the free end of the arm beingpivotally connected at 80 with a link 81, said link having its free endpivotally connected at 82 with the arm 88 of the cross-head 84, saidcross-head being slidably mounted on the leg 42 in straps 85. A bellcrank lever 86 is pivotally mounted at 87 on the cross-head 84, theshorter arm of the bell crank lever being adapted to engage a pin 88,attimes, for a purpose which will hereinafter appear. The upper free endof the bell crank lever is. provided with a pin 89 'engageable, attimes, in the recess 90, formed in the lower free end of the lever 37. A

loop 91 riveted or otherwise secured to the leg 42 embraces the longerarm of the bell crank lever 86 to limit the movement of the same. 1

A block 95 adjustably held by a set screw 96 is mounted upon the curvedguiding frame 40 to limitthe movement of the lever 37 and hence limitthe length to which the filmand paper are moved.

ln use a movement of the lever 37will im= part motion to the rollers 26and 27 causing the film and sensitized paper to be drawn over the faceof the transparent top of the housing H. The sensitized paper, afterbesee.

ing printed, is drawn over the strip 64 to lower free end of the saidlever causing a vertical reciprocation of the cross-head 84 whichin'turn causes oscillation of the shaft 75. This movement in turn causesthe cam 76 to engage the knife blade, moving the same downwardly tosever the paper. If it is desired to make a plurality of prints of onesection of the film, the inion 35 is shifted out of engagement wit thepinion driving the film rollers leaving said rollers at rest while therollers 27 move the sensi tized paper over the film on each printingcrank lever 86 will'cause the long arm of said lever to be movedoutwardly on the pivot into the path of movement of the lever 37 so thatwhen said lever is again oscillated said long arm will be engagedthereby. The nut 52 on the bolt 51 serves to engage the arm formed onthe crank shaft 48 to bring the presser member 45 into engagement withthe film and sensitized paper during a printing operation. This actionalso moves the arm 56 into engagement with the pin 60 closing thecircuit to the light source.

From an inspection of Fig. 4 it will be seen terially increased. Ifdesired, the rollers 26 and 27 may be made of rubber or may be yieldablymounted in order to vary under different thicknesses of paper used. 7

From the above description taken in connection with the accompanyingdrawing, it is thought that a clear and comprehensive understanding oftheconstruction, operation and advantages of my invention may be had,and while I have shown and described the device as embodying a specificstructure, I desire that it be understood that such changes may be madein said structure as do not depart from the spirit and scope of theinvention as claimed.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is:

1. In a photographic printing machine, the combination of a housinghaving a transparent top, a presser member arranged above said top forbringing the paper and film into relative proximity and into proximitywith said top, means associated there- With for feeding the paper andfilm including a lever, feeding rollers, said lever actuating saidrollers.

2. In a photographic printing machine, the combination of a housinghaving a transparent top to receive a film and paper,

a presser member for bringing the paper and film into relative proximityand into proximity with said top, means associated therewith to controla light source, a lever, feeding rollers, said lever actuating saidfeeding rollers.

In testimony whereof, I aflix my signature hereto.

ISAAC P. BARROWS.

